982907281 has 2 divisors, whose sum is σ = 982907282. Its totient is φ = 982907280.

The previous prime is 982907251. The next prime is 982907291. The reversal of 982907281 is 182709289.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 676832256 + 306075025 = 26016^2 + 17495^2 .

It is a cyclic number.

It is not a de Polignac number, because 982907281 - 2⁵ = 982907249 is a prime.

It is a super-2 number, since 2×982907281² = 1932213446085625922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (982907251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491453640 + 491453641.

It is an arithmetic number, because the mean of its divisors is an integer number (491453641).

Almost surely, 2^982907281 is an apocalyptic number.

It is an amenable number.

982907281 is a deficient number, since it is larger than the sum of its proper divisors (1).

982907281 is an equidigital number, since it uses as much as digits as its factorization.

982907281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 982907281 is about 31351.3521398998. The cubic root of 982907281 is about 994.2696528437.

The spelling of 982907281 in words is "nine hundred eighty-two million, nine hundred seven thousand, two hundred eighty-one".